345087 has 8 divisors (see below), whose sum is σ = 511280. Its totient is φ = 230040.

The previous prime is 345067. The next prime is 345089. The reversal of 345087 is 780543.

345087 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 345087 - 2⁷ = 344959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12781 = 345087 / (3 + 4 + 5 + 0 + 8 + 7).

It is a Duffinian number.

345087 is strictly pandigital in base 7.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 345087.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345087.

It is not an unprimeable number, because it can be changed into a prime (345089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6364 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (63910).

2³⁴⁵⁰⁸⁷ is an apocalyptic number.

345087 is a deficient number, since it is larger than the sum of its proper divisors (166193).

345087 is a wasteful number, since it uses less digits than its factorization.

345087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12790 (or 12784 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 345087 is about 587.4410608733. The cubic root of 345087 is about 70.1416858118.

The spelling of 345087 in words is "three hundred forty-five thousand, eighty-seven".